3662729 has 8 divisors (see below), whose sum is σ = 4330560. Its totient is φ = 3031056.

The previous prime is 3662723. The next prime is 3662731. The reversal of 3662729 is 9272663.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3662729 - 2⁴ = 3662713 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3662723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8819 + ... + 9224.

It is an arithmetic number, because the mean of its divisors is an integer number (541320).

Almost surely, 2^3662729 is an apocalyptic number.

It is an amenable number.

3662729 is a deficient number, since it is larger than the sum of its proper divisors (667831).

3662729 is a wasteful number, since it uses less digits than its factorization.

3662729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18079.

The product of its digits is 27216, while the sum is 35.

The square root of 3662729 is about 1913.8257496439. The cubic root of 3662729 is about 154.1469474982.

The spelling of 3662729 in words is "three million, six hundred sixty-two thousand, seven hundred twenty-nine".